S. Ito, Yumo Tanaka, A. Kakehi,
Mar 1, 1978
Citations
0
Influential Citations
4
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
5-Phenyltetrazole is obtained in a moderate yield by the mercury(II) oxide oxidation of the title hydrazidine prepared from N-(phenylsulfonyl)benzohydrazonoyl chloride and benzohydrazide. The tetrazole formation is interpreted in terms of an intramolecular SN2 type process of the intermediate formazan with the removal of benzenesulfinic acid. In the absence of oxidizing agents, the hydrazidine gives 2,5-diphenyl-1,3,4-oxadiazole and 3,5-diphenyl-4-phenylsulfonylamino-4H-1,2,4-triazole.